257632612 has 12 divisors (see below), whose sum is σ = 453194476. Its totient is φ = 128148480.

The previous prime is 257632601. The next prime is 257632619. The reversal of 257632612 is 216236752.

It can be written as a sum of positive squares in 2 ways, for example, as 138909796 + 118722816 = 11786^2 + 10896^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (257632619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166089 + ... + 167632.

Almost surely, 2^257632612 is an apocalyptic number.

It is an amenable number.

257632612 is a deficient number, since it is larger than the sum of its proper divisors (195561864).

257632612 is a wasteful number, since it uses less digits than its factorization.

257632612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333918 (or 333916 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 257632612 is about 16050.9380411240. The cubic root of 257632612 is about 636.3073583948.

The spelling of 257632612 in words is "two hundred fifty-seven million, six hundred thirty-two thousand, six hundred twelve".